"""
Fish
A module containing various sea creatures.
"""

# TODO: Find some way to "register" new kinds of fish

class SeaCreature(object):
    """
    Base class of all swimming animals.
    """
    pass

class Shark(SeaCreature):
    """
    Eats swimming pirates.
    """
    pass

class Dolphin(SeaCreature):
    """
    Helps swimming pirates.
    """
    pass


class SeaTurtle(SeaCreature):
    """
    Can be used as a raft.
    """
    pass

